Composite leaf spring and manufacturing method thereof

Abstract

The invention discloses a composite leaf spring and a manufacturing method thereof. The composite leaf spring is formed through composition of three parts including warp yarn, weft yarn and vertical yarn. A spool is placed on a creel, the vertical yarn penetrates through a mail eye, the warp yarn and the weft yarn directly penetrate through a yarn leading hole from a gap and are woven on a three-dimensional rapier loom, the warp yarn is separated by a yarn dividing rod to form a shed allowing the weft yarn to penetrate through, the vertical yarn is located at the uppermost end and the lowermost end, the vertical yarn can be interwoven with the warp yarn and the weft yarn according to the organization structure of a fabric finally to be wrapped, a rapier device is pushed by an air cylinderto move back and forth on a sliding shaft rail, the fabric surface in the thickness direction is uniformly and consistently stressed in a pneumatic beating manner, the three-dimensional fabric is pulled backwards in a straight manner by the aid of a stepping motor, a mold is cleaned with absolute alcohol and is dried in the air, then the surface of the mold is coated with a demolding agent, the three-dimensional fabric obtained after cutting is placed into the mold, the mold is closed, resin is injected, solidification is performed at the temperature of 100 DEG C for 2 h after injection is completed, the fabric is demolded after being cooled to the room temperature, and the composite leaf spring structure is obtained.

Description

technical field [0001] The invention relates to the field of lightweight automobiles, in particular to a composite material leaf spring and a manufacturing method thereof. Background technique [0002] At present, there are three main ways to prepare composite leaf springs: compression molding, vacuum-assisted resin molding, and fiber winding molding; the raw materials are mainly prepregs, fabrics and filaments, and the prepregs or fabrics are spread layer by layer. After being wound and solidified, a composite material leaf spring is finally made. Due to the clear layers, the composite material leaf spring is prone to delamination and damage. [0003] Therefore, there is an urgent need for a composite leaf spring structure capable of improving the above-mentioned problems. Contents of the invention [0004] The object of the present invention is to provide a composite material leaf spring and a manufacturing method thereof, so as to solve the problems raised in the above...

AI Technical Summary

Problems solved by technology

[0002] At present, there are three main ways to prepare composite leaf springs: compression molding, vacuum-assisted resin molding, and fiber winding molding; the raw materials are mainly prepregs, fabrics and filaments, and the prepregs or fabrics are spread layer by layer. After winding and curing, a composite leaf spring is finally made. Due to the clear layers, the composite leaf spring is prone to delamination and damage.

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